The QDDC-1000-6000-K1 from Qualwave is a Dual Directional Coupler with Coupling 10 to 40 dB, Coupling Variation ±0.8 to ±1.5 dB, Frequency 1000 to 6000 MHz, Average Power 100 W, Insertion Loss 0.4 to 0.7 dB. Tags: Module with Connectors. More details for QDDC-1000-6000-K1 can be seen below.